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create coinbase transaction

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admin 2018-02-12 12:13:16 +04:00
parent 7d37477aff
commit ed76d9be46
2 changed files with 29 additions and 32 deletions
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20
pybtc/blockchain.py
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@ -617,9 +617,6 @@ class Block():
def calculate_commitment(self, witness = None): def calculate_commitment(self, witness = None):
wtxid_list = [b"\x00" * 32,] wtxid_list = [b"\x00" * 32,]
print(self.transactions)
print(self.transactions[0].witness[0].witness[0])
# print("len ", len(self.transactions))
if not (len(self.transactions) == 1 and self.transactions[0].coinbase): if not (len(self.transactions) == 1 and self.transactions[0].coinbase):
for tx in self.transactions[0 if not self.transactions[0].coinbase else 1:]: for tx in self.transactions[0 if not self.transactions[0].coinbase else 1:]:
wtxid_list.append(tx.whash) wtxid_list.append(tx.whash)
@ -636,7 +633,6 @@ class Block():
coinbase_input = Input((b'\x00'*32 ,0xffffffff), coinbase, 0xffffffff) coinbase_input = Input((b'\x00'*32 ,0xffffffff), coinbase, 0xffffffff)
tx.tx_in = [coinbase_input] tx.tx_in = [coinbase_input]
tx.witness = [Witness([b'\x00'*32])] tx.witness = [Witness([b'\x00'*32])]
print(tx.witness[0].witness[0])
commitment = self.calculate_commitment(tx.witness[0].witness[0]) commitment = self.calculate_commitment(tx.witness[0].witness[0])
for o in outputs: for o in outputs:
if type(o[1]) == str: if type(o[1]) == str:
@ -659,8 +655,6 @@ class Block():
extranonce_start = len_coinbase + extranonce_start extranonce_start = len_coinbase + extranonce_start
return tx[:44 + extranonce_start], tx[44+ len_coinbase:] return tx[:44 + extranonce_start], tx[44+ len_coinbase:]
result = version + marke_flag + ninputs + b''.join(inputs) +\
nouts + b''.join(outputs) + witness + self.lock_time.to_bytes(4,'little')
@classmethod @classmethod
def deserialize(cls, stream): def deserialize(cls, stream):
@ -669,12 +663,12 @@ class Block():
stream.seek(-80, 1) stream.seek(-80, 1)
kwargs = { kwargs = {
'hash': double_sha256(header), 'hash': double_sha256(header),
'version': int.from_bytes(stream.read(4), 'little'), 'version': stream.read(4),
'prev_block': stream.read(32), 'prev_block': stream.read(32),
'merkle_root': stream.read(32), 'merkle_root': stream.read(32),
'timestamp': int.from_bytes(stream.read(4), 'little'), 'timestamp': int.from_bytes(stream.read(4), 'little'),
'bits': int.from_bytes(stream.read(4), 'little'), 'bits': stream.read(4),
'nonce': int.from_bytes(stream.read(4), 'little'), 'nonce': stream.read(4),
'txs': read_var_list(stream, Transaction), 'txs': read_var_list(stream, Transaction),
'block_size': stream.tell(), 'block_size': stream.tell(),
'header': header 'header': header
@ -682,19 +676,17 @@ class Block():
return cls(**kwargs) return cls(**kwargs)
def serialize(self, hex = False): def serialize(self, hex = False):
block = self.version.to_bytes(4,'little') + \ block = self.version + \
self.prev_block + \ self.prev_block + \
self.merkle_root + \ self.merkle_root + \
self.timestamp.to_bytes(4,'little') + \ self.timestamp.to_bytes(4,'little') + \
self.bits.to_bytes(4,'little') + \ self.bits + \
self.nonce.to_bytes(4,'little') + \ self.nonce + \
to_var_int(len (self.transactions)) to_var_int(len (self.transactions))
for t in self.transactions: for t in self.transactions:
if t.hash == t.whash: if t.hash == t.whash:
print("l")
block += t.serialize(segwit = 0) block += t.serialize(segwit = 0)
else: else:
print("s")
block += t.serialize(segwit = 1) block += t.serialize(segwit = 1)
if hex: if hex:

41
test/block.py
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